/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright 1997-2007 Sun Microsystems, Inc.  Portions Copyrighted 2008 Richard Schilling.
 *
 * The contents of this file are subject to the terms of either the GNU
 * General Public License Version 2 only ("GPL") or the Common Development
 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License. You can obtain
 * a copy of the License at https://glassfish.dev.java.net/public/CDDL+GPL.html
 * or glassfish/bootstrap/legal/LICENSE.txt.  See the License for the specific
 * language governing permissions and limitations under the License.
 *
 * When distributing the software, include this License Header Notice in each
 * file and include the License file at glassfish/bootstrap/legal/LICENSE.txt.
 * Sun designates this particular file as subject to the "Classpath" exception
 * as provided by Sun in the GPL Version 2 section of the License file that
 * accompanied this code.  If applicable, add the following below the License
 * Header, with the fields enclosed by brackets [] replaced by your own
 * identifying information: "Portions Copyrighted [year]
 * [name of copyright owner]"
 *
 * Contributor(s): Richard Schilling (coderroadie@gmail.com)
 *
 * If you wish your version of this file to be governed by only the CDDL or
 * only the GPL Version 2, indicate your decision by adding "[Contributor]
 * elects to include this software in this distribution under the [CDDL or GPL
 * Version 2] license."  If you don't indicate a single choice of license, a
 * recipient has the option to distribute your version of this file under
 * either the CDDL, the GPL Version 2 or to extend the choice of license to
 * its licensees as provided above.  However, if you add GPL Version 2 code
 * and therefore, elected the GPL Version 2 license, then the option applies
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 */

package javax.mail;

import java.util.Vector;

/**
 * This class represents a set of quotas for a given quota root.
 * Each quota root has a set of resources, represented by the
 * <code>Quota.Resource</code> class. Each resource has a name
 * (for example, "STORAGE"), a current usage, and a usage limit.
 * See RFC 2087.
 * 
 * @since JavaMail 1.4
 * @author Bill Shannon
 */

public class Quota {

    /**
     * An individual resource in a quota root.
     * 
     * @since JavaMail 1.4
     */
    public static class Resource {

        /** The name of the resource. */
        public String name;
        /** The current usage of the resource. */
        public long usage;
        /** The usage limit for the resource. */
        public long limit;

        /**
         * Construct a Resource object with the given name,
         * usage, and limit.
         * 
         * @param name the resource name
         * @param usage the current usage of the resource
         * @param limit the usage limit for the resource
         */
        public Resource(String name, long usage, long limit) {
            this.name = name;
            this.usage = usage;
            this.limit = limit;
        }
    }

    /**
     * The name of the quota root.
     */
    public String quotaRoot;

    /**
     * The set of resources associated with this quota root.
     */
    public Quota.Resource[] resources;

    /**
     * Create a Quota object for the named quotaroot with no associated
     * resources.
     * 
     * @param quotaRoot the name of the quota root
     */
    public Quota(String quotaRoot) {
        this.quotaRoot = quotaRoot;
    }

    /**
     * Set a resource limit for this quota root.
     * 
     * @param name the name of the resource
     * @param limit the resource limit
     */
    public void setResourceLimit(String name, long limit) {
        if (resources == null) {
            resources = new Quota.Resource[1];
            resources[0] = new Quota.Resource(name, 0, limit);
            return;
        }
        for (int i = 0; i < resources.length; i++) {
            if (resources[i].name.equalsIgnoreCase(name)) {
                resources[i].limit = limit;
                return;
            }
        }
        Quota.Resource[] ra = new Quota.Resource[resources.length + 1];
        System.arraycopy(resources, 0, ra, 0, resources.length);
        ra[ra.length - 1] = new Quota.Resource(name, 0, limit);
        resources = ra;
    }
}
